n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 16 |
4 | 45 |
5 | 118 |
6 | 296 |
7 | 717 |
8 | 1684 |
9 | 3876 |
10 | 8770 |
11 | 19581 |
12 | 43251 |
13 | 94686 |
14 | 205748 |
15 | 444255 |
16 | 954037 |
17 | 2039137 |
18 | 4340409 |
19 | 9205096 |
20 | 19458756 |
21 | 41014654 |
22 | 86223599 |
23 | 180835794 |
24 | 378448792 |
25 | 790452002 |
26 | 1648012854 |
27 | 3430243421 |
28 | 7128922283 |
29 | 14794715462 |
[1,2,5,16,45,118,296,717,1684,3876,8770,19581, 43251,94686,205748,444255,954037,2039137,4340409, 9205096,19458756,41014654,86223599,180835794, 378448792,790452002,1648012854,3430243421, 7128922283,14794715462] |